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Nowadays, the sensitivities of the ionization gauges with carbon nanotube (CNT) cathodes are generally low, which is unfavorable for the measurement of extremely high vacuum (XHV). In order to solve the problems, a spherical oscillator gauge with CNT cathode, which has high gauge sensitivity, is simulated using SIMION 8.0 and experimented preliminarily. The numerical simulation results show that the...
In order to improve the efficiency and obtain high output power with pure mode, 3-D particle-in-cell simulations are made on a novel coaxial triode vircator. Simulation results show that due to the appearance of the additional cylindrical cathode rod along the centerline, pure TM01 mode can be obtained in the output region. Simulation results also show that high-efficiency and pure TM01 mode output...
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